This study is a retrospective analysis of patients converted from atorvastatin to another equivalent statin. It is observational because the patients were all on atorvastatin, had been informed by their prescription drug plan that it would not be covered, and that if agreed they would be changed to an equivalent that is covered by their plan. The patients were either converted with the help of pharmacist by collaborative practice agreement (CPA)or upon contacting their physician requesting a different medication. We are comparing the percentage first converted to the equivalent dose in each group and whether patients continued to be at hyperlipidemia treatment goal after the interchange.